import java.util.Vector;
/** Objects of class PFilter are used to
 *  store the filter information.
 *
 *  @author Gregor Panzer
 *  qversion 0.1
 */
public class PFilter {
  /** The terms contained by the following vector must
   *  be nearby each other.
   */
  private Vector terms;
  /** exist = TRUE means that the term must be contained
   */
  private boolean exist;
  /** The String should only contain AND, OR, NOT as values
   */
  private String boolOp;
  /** The variable contains a reference to the next filter
   *  expression
   */
  private PFilter nextFilter;
  /** Set up a new PFilter object.
  */
  public PFilter () {
  }
  /** Selectors
   */
  public Vector getTerms() {return terms;}
  public boolean getExist() {return exist;}
  public String getBoolOp() {return boolOp;}
  public PFilter getNextFilter() {return nextFilter;}
}